[PATCH pve-common] tools: fix syscall mknod()

[Jing Luo]

b792e8df81 introduced a bug that can cause this:

Undefined subroutine &PVE::Syscall::SYS_mknod called at /usr/share/perl5/PVE/Syscall.pm line 11

It should be mknod, not SYS_mknod. This caused other pve perl lib failing
to build. I couldn't reproduce this on amd64 build, but I could reproduce this
on arm64 build; however this didn't seem to fix the issue, unless I revert
b792e8df81.

cf: b792e8df81d70cc8fc4bc7d0655313d4a7f40c3d
Signed-off-by: Jing Luo <jing at jing.rocks>
---
 src/PVE/Tools.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PVE/Tools.pm b/src/PVE/Tools.pm
index 766c809..c2906de 100644
--- a/src/PVE/Tools.pm
+++ b/src/PVE/Tools.pm
@@ -1753,7 +1753,7 @@ sub mkdirat($$$) {
 
 sub mknod($$$) {
     my ($filename, $mode, $dev) = @_;
-    return syscall(PVE::Syscall::SYS_mknod, $filename, int($mode), int($dev)) == 0;
+    return syscall(PVE::Syscall::mknod, $filename, int($mode), int($dev)) == 0;
 }
 
 sub fchownat($$$$$) {
-- 
2.45.2